Incinerator for medical waste



Nov. 4, 1952 v R, GODER 2,616,379

INCINERATOR FOR MEDICAL WASTE Chard 60 der Nov. 4, 1952 l R, @ODER 2,616,379'

INCINERATORFOR MEDICAL WASTE Filed Aug. 1l, 1948 2 SHEETS-SHEET 2 J9 Z6 f7 jv/U55 F67 n Fj Patented Nov. 4, i952 UNITED STATES PATENT CFFICE INCINERATOR FOR MEDICAL WASTE Richard Goder, Chicago, Ill. Application August 11, 1948, Serial No. 43,668

(Cl. 11G- 18) 7 Claims.

The present invention relatesto an incinerator for the burning of contaminated matter, such as wastes from a hospital, particularly such wastes as carry sputum or similar or like discharges by diseased patients or the like.

Among the objects of the invention is to .provide a novel incinerating means having charging, combustion and exhaust chambers with a partition means therefor, preferably between the charging and exhaust chambers and havingfa passage for conveying distillates, gases and air, and the like from the former to the latter chambers in aiding complete and emcient combustion of the waste material and so forth.

A further object of the inventionl is to provide a novel grate means having a pan like portion or portions which prevent the dripping of liquid or like material, such as sputum or the like, into the ash pit or the like, and yet having sufl'icieht airpassagesl for the flow of air or supporterof combustion to the combustion chamber above the grate means. Y

Other objects, capabilities, advantages, features, and the like are comprehended by they invention as will later appear, and as are inherently possessed by the invention.

Referring briefly to the drawings:

Fig. l is a vertical sectional View of an embodiment of the invention; j

Fig. 2 is a horizontal sectional view taken in a plane represented by line 2 2 in Fig. 1 of the drawings;

Fig. 3 is a transverse sectional view taken in a plane represented by line 3-3 in Fig. l of the drawings;

1 Fig. 4 is a top plan view of a grate part of a grate means; .4

` Fig. 5 is a transverse sectional view taken ina plane represented by line 5--5 in Fig. 4 of the drawings;

Fig. 6 is a similarview taken in a plane represented by line 6-6 i'n Fig. 4 of the drawings; and,

Fig. 7 is a side view of the part shown in Fig. 4.

Referring more in detail to the drawings, the embodiment chosen to illustrate the invention is shown as comprising a housing I having an outer shell composed of front wall 2, rear wall 3, and side Walls 4 and 5, and within the :upper portion of which is provided an insulating lining or vwall composed of wall portions 6, 1, 8, and 9, such walls being reinforced at the corners with reinforcing members I0, II, I2, and I3. Around the top ends of the walls 6, 1, 8, and 9 are bars I4, I5, and` I6 adapted for supporting `a top I1, this top being composed of inner and outer sheets I8 grate means 5I.

and I9, and an interposed insulating sheet 29, and with the margins of the top suitably sup-` ported on the bars I4, I5 and I6. The top I1 has a charging opening 2| and an exhaust opening 22. At the opening 2I is a closure or door frame 23 to which is pivotally connected a door 24 as by way of pivot or hinge means 25 or the like. At the exhaust opening 22 is a pipe collar or cou-` pling 26 for connection to a smoke pipe or exhaust duct (not shown). The lower ends of the walls 6, 1, 8, and 9 are supported on suitable brackets 21, 28, and 29 suitably attached to the walls 2, 3;- 4, and 5.

Transversely of the space beneath the top I1 is a cross ball 30, the ends 3| and 32 of which are held between-bars 33, 33 and 34, 34 (seel Fig. 2) within the walls 8 and 9. 'Ihe lower ends of these bars rest on the supporting bars` 29 which support the lower ends of the wall portions 8 and 9. The lower end portion of the cross wall 30 has an opening 35 at the sides of whichthe wall 30 has legs 36 and 31 resting on the supporting bars 29.

In the wall 30 are provided passages 38 eachv having-a lateral inlet 39 communicating with the upper portion of a primary or charging chamber 4l),l and at the lower end portion an outlet 4I communicating with the opening 35 in the lower part of the cross wall 30. The walls 6, 1, 8, and 9 also have upright passages 42, 43, 44, and 4 5 which are open above the bars I4, I5, I6 and below the bars 21, 29 as also below the bars 28. Between the walls 30 and 1 is provided a secondary or exhaust chamber 46 communicating at its upper end with the exhaust opening 22.

Beneath the chambers 40 and 46 is a hopper 41 having inclined side walls 48 and 49 and inclined end wall 50 and converging downward to a The inclined walls 48, 49 and 50 have air holes 52, 53, 54, and the hopper 41 has an open forward end portion 55 located op'- posite an opening or burner port 56 provided in the front wall 2 of the device, and in this opening is a neck or hood or the like 51 having an inclined lower wall portion 58 extending tothe grate means 5 I. The flame from the burner v(not shown) projects into the fire space or combustion chamber 90 and the hopper 41 and above' thev grate means 5 I. Beneath the hopper 41 and the grate means5I is a chamber or ash pit 59 having a floor 6 0 forming the bottom of the device, and on this floor 60 is a collecting or ash receptacle 6I which may be withdrawn through a door opening 62 normallyv closed by a door 63, the latter having a suitable handle 64 for opening the door and also having suitable air inlet control means (not shown).

In the chamber 59 is a supporting frame 65 having end walls 66 and 61 fixed to the front and rear walls 2 and 3 of the device, and side walls 68 and 69. This frame 65 has a suitable cross channel into which fits and rests the lower lip portion 1| of the inclined Wall 50, and likewise has longitudinal channels 12 and 13 in which t v"and rest the lower lip parts 14 and 15 of the inclined walls l||8f-and 49 -of the hopper 41. The frame 65 also has longitudinal bar members 16 and 11 for supporting the grate means 5|, these bars having notches or the like 18 and 19 for the receiving and the supporting of lugs 80 and 8| of the grate pans or the like later described in connection with Figs. 3-6 of the drawings.

The grate means 5| comprises am7 number-of grate members 82 (see Figs. 3-6) and forming part of theJgratameans-M above. Each member.82 Vhas 4vanumber of `pan like depressions 83, 84; 65 and-betweenl the-pans are air slots or the iik@ eas-1, sirena a9 vpptiirfmgh which air from the ash-pit -chamberl `ilows to support combustion `in the combustion chamberl v9i) above the grate 5| andin the hopper 41, `and, down lthrough whichash may fall to -ash receptacle 6|. Between the slots 87S and l 81A and`A between the slots '88 and 89 arefA-ribs 9| Yand -92 AAround the pan assembly are wallr-portionsrg,94,195, and -95 and within are cross walls 91,598,99, and |90. The lugs -89 are xed to the wall 93 and the lugs 8| are fixed to the wall-S4. vA cross slotil Yalso exists between a pair'ofmembers 82,'82-foripassage of air and alsoo'fwash andthe like asin-the case ofthe slots 86, nlft-and, b y l I"In'operationthewast'el'material is charged into the charging chamber-E0 by way of the openingv 24| when the door or closuremember 24 is open, the waste .being guided down tothe grate means 57| bythe slanted walls 4S, 49, 59, of the hopper 41 to occupy the space in the combustion chamber 90. The ame from the burner (not shown) is projected through the Aflame. port 56 tomthe waste in the -chamber'l to burn the same. The drippings 6r the 'like Afrom the wastewill iiow into the gratepans y'83-/8il-8`5 to be conned 'therein and then evaporated l--t'oy pass up tothe exhaust chamber-45 andthe outlet 22 withthe products or `cnibustionl Theg'ases vapors, distillates,and theflkearising erhfthe mass inthecombustion chahbger'il into -the charging chamberfl will nii'x "with aii"aiidpa's's'th1ugh the passages 38 in'the 'cross wall 35 'an'dfbe discharged into the opening 35 to burn with'tlielburning-gasespassngiip frm the chamber'SU to tl'e exhaust cham)- berll. Airp'asses infthroiighthe door'BtZ-BS int'th'e 'ash 'chamberg 'ndtheiice up through the'p'nings'E'Z-- and`54 and also up through incensi-s '35,81, es; se, and :ful to supmitcfmu-v busti'h in the chamber and so forth. The liquid caught in the-pans 83-84-85 will evaporate and-pass oiivwith the Vproducts of -combustion to vthe exhaust 4chambereiifi and the iiue'port 22. The-vapors,'distillates-and so forth which pass up through the `chamber Aliil'will 'mix with air Whichfhas also-passed up thereto and fio'wby way of the passages 33 to the opening -r space v'35 to burn with 'the products of vcombustion passing fro'mth'e- Chamberlin to the chamberd. vBut asnesmay collectif; thep-n's fsa-'821485 and may be "u'mpedizite iheash ieceptacieiby rocking the gra-teparts 82 btth lugs/lliafnd-Bi as desired 4 to invert them and drop the ash down into the ash receptacle 6 I.

While I have herein described and upon the drawings shown an illustrative form of the invention, it is to be understood that the invention also comprehends other constructions, arrangements of parts, details, features and the like without departing from the spirit of the invention.

Having thus disclosed the invention, I claim:

1. In an incinerator device ci the character disclosed, which comprises a housing in which are provided a waste material receiving chamber and an exhaust chamber with a wall between said waste `material receiving chamber and said exhaust chamber, a combustion chamber means locatedbelow and extending along under said waste.

material receiving chamber and said exhaust chamber and having an upper opening in iull and free communication with said waste material receiving chamber and said exhaust chamber, a. grate means at -the llower .portion of fsaid combustion chamber means for supporting mate'- rial to be incineratedron such lgrate means-within said combustion chamberduring incineratin'g, and means vlocated in saidho'usingifor supporting said grate means in. position `under said combustion chamber 'means Aand said housing having fa burner port vmeans located 'opposite Vsaid combustion chamber means Vvadapted tolrec'eiV-e a burner for directing i'lame's t'o the v'material located Vin said 'combustion chamber and Ich said grate" means, said Vgraternea'ns having .Span means in which liquid material may be'eeived `from the waste material llocated in s`aid combustion chamber and located on Saidfgrate means for evaporation of said liquid'infsaidpan means vand exe hausted 'by 'Way of said lexhaust chamber.

2.'In an incinerating device as -set forth in claim l, and wherein 'sai'dfsup'porting' means for said grate means hsa pivotal means associated with said vpan means for affording' a vtipping 'df said pan means for the dumping' out di ashes from saidpan means.

3. In an incineratiiig device as set forth in claim 2, and wherein -said housing is provided with an ash recepiecief'fr receiving ashes dumped from said panm'eri's when-said pan tmeans are tipped.

4. In an incinerator divicefthefharacter disclosed, which comprise's'a 'l'iousi'ng' in which "are provided a wastemate'rial receiving chamber and an exhaust chamber with a wall between sa-"id waste materia yreceiving kvchanter Aand said :'e'xhaust chambena combustion chamber 'mean'slocated below and extending along under saidlwa'ste material receiving chamber "and said exhaust chamber and having an upper openinginullfand free communication with 'said waste material ireceiving chamber andsaid exhaust'chambei-, Ifa grate means at the lower portion of said co'mbii'sa tion chamber means forisu'pporting material to bev incinerated on such'rgrate means within said combustion chamber during -incinerating, a'n'd means located in said housingfor supportingsa'i'd ygrate means in polsi-tionunder'sai'd combustion chamber means and said` housing having-a burner port" 'means located opposite said combustion chamber meansiadapted to vreceive a'burner for directing names to the material located infsaid combustion chamber and on'said grate means, said grate means having .pan vmeans in which liquid material may be received vfrom the waste material located in said combustionch-ambervand located on Ysaid grate vmeansfiorevaporation of said li'quid in 'saidpan means and exhausted'by f tion chamber means and for directing Waste material from said waste material receiving chamber to said grate means.

5. In an incinerating device as set forth in claim 4, and wherein said downwardly extending side wall portions are provided with openings for the passage to said combustion chamber means of a supporter of combustion.

6. In an incinerator device of the character disclosed, which comprises a housing in which are provided a waste material receiving chamber and an exhaust chamber with a Wall between said waste material receiving chamber and said exhaust chamber, a combustion chamber means located below and extending along under said waste material receiving chamber and said exhaust chamber and having an upper opening in full and free communication with said waste material receiving chamber and said exhaust chamber, a grate means at the lower portion of said combustion chamber means for supporting material to be incinerated on such grate means within said combustion chamber during incinerating, and means located in said housing for supporting said grate means in position under said combustion chamber means and said housing having a burner port means located opposite said combustion chamber means adapted to receive a burner for directing iiames to the material located in said combustion chamber and on said grate means,

,said grate means having pan means in which liquid material may be received from the waste material located in said combustion chamber and located on said grate means for evaporation of said liquid in said pan means and exhausted by way of said exhaust chamber, and said wall between said waste material receiving chamber and said exhaust chamber being provided with a passage means having an inlet port open to the upper space of said waste material receiving chamber and having an outlet port open to said exhaust chamber.

7. In an incinerator device as set forth in claim 6, and wherein said Wall hasat the lower portion thereof an opening located'above said combustion chamber means and between said waste ma-V terial receiving chamber and said exhaust chamber and said passage means in said wall between said waste material receiving chamber and said exhaust chamber having its outlet port opening into said opening located above said combustion chamber means.

RICHARD GODER.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS Number Name Date 187,488 Scholeld Feb. 20, 1877 913,211 Jeierson Feb. 23, 1909 1,093,356 Prescott Apr. 14, 1914 1,275,651 Borge Aug. 13, 1918 1,501,847 Howell July 15, 1924 1,723,182 Kohout Aug. 6, 1929 1,769,880 Howie July 1, 1930 

